Synthesis, characterisation and flame, thermal and electrical properties of poly (n-butyl methacrylate)/titanium dioxide nanocomposites

Suhailath, K.; Ramesan, M. T.; Naufal, Binu; Periyat, Pradeepan; Jasna, V. C.; Jayakrishnan, P.

doi:10.1007/s00289-016-1737-9

Cited by 37 publications

(17 citation statements)

References 26 publications

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“…The chemical structures of both OPTS and the intermediate product Ti–Si were analyzed by FTIR, LRS, and XPS. Figure a displays that the vibration absorption peaks of (P)–OH in DPPA located at 2614 and 960 cm –1 ; the vibration peaks of (Ti)–OH and (Si)–OH in Ti–Si exist at 1076 and 953 cm –1 , respectively . For the OPTS, several peaks mentioned above almost disappear, indicating that the reaction between (P)–OH and (Ti)–OH/(Si)–OH indeed occurred.…”

Section: Resultsmentioning

confidence: 90%

“…Common inorganic precursors may be prepared through the hydrolysis reaction of organic silicates or organic titanates. Tetrabutyl titanate has been proved to be highly efficient in preparing inorganic precursors, and the resulting titanate-containing nanomaterials have several typical characteristics, such as high thermal stability, nontoxicity, photostability, and high catalytic activity. , Based on the above-mentioned features, titanate-based nano-flame retardants were developed to improve the fire resistance of polymers. − For instance, the flame retardancy of unsaturated polyester was significantly improved after the incorporation of Cu 2 O–TiO 2 –GO nanosheets, and 2 wt % of the nanosheets led to a reduction of 29.7% in the peak of heat release rate of the unsaturated polyester . Because of similar characteristics with the tetrabutyl titanate, the tetraethyl orthosilicate is also used in constructing hybrid nanomaterials. , In a previous report, a nanosilica/graphene oxide (m-SGO) hybrid was prepared.…”

Section: Introductionmentioning

confidence: 99%

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Hybrid Nanorods Composed of Titanium, Silicon, and Organophosphorus as Additives for Flame-Retardant Polycarbonate

Yue

Deng

Wei

et al. 2019

ACS Appl. Nano Mater.

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Upon fabrication of a high-performance functional polymer, an ideal additive should be material that may endow the polymer with an appointed function and meanwhile does not damage or even improve the other properties. Novel nanoparticles have a potential value in achieving the above-mentioned ideal. In this work, a novel hybrid nanorod OPTS containing organophosphorus–titanium–silicon (P–Ti–Si) was synthesized via a hydrothermal reaction using tetraethyl orthosilicate, tetrabutyl titanate, and diphenylphosphinic acid as raw materials. Different tests were used to illustrate the structure of OPTS nanorods and demonstrate the formation mechanism. On the basis of the structural characteristic of OPTS, it was used to fabricate high-performance flame-retardant polycarbonate (PC). Experimental results confirmed that only 0.10 wt % of OPTS endowed PC with a UL-94 V-0 rating and a limiting oxygen index of 29.7%. Meanwhile, the flame-retardant PC with 0.10 wt % of OPTS had a higher tensile strength and a higher elongation at break than pure PC, correspondingly increased by 8.0 and 8.3%. Therefore, high-performance flame-retardant PC was prepared after the incorporation of a small amount of OPTS. The reasons for the flame retardance and excellent mechanical properties of PC/OPTS are discussed thoroughly.

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Section: Resultsmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Hybrid Nanorods Composed of Titanium, Silicon, and Organophosphorus as Additives for Flame-Retardant Polycarbonate

Yue

Deng

Wei

et al. 2019

ACS Appl. Nano Mater.

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“…The absorption peaks at 2,951 and 2,873 cm −1 are assigned to C‐H stretching vibrations of CH 3 and CH 2 groups, respectively, in the PBMA backbone. The characteristics peaks at 1,729 and 1,459 cm −1 corresponds to C=O and C‐O vibration bands, respectively, of the ester part present in the PBMA backbone . The bands at 1,461 cm −1 are associated with C‐O‐C stretching vibrations.…”

Section: Resultsmentioning

confidence: 98%

Effect of neodymium‐doped titanium dioxide nanoparticles on the structural, mechanical, and electrical properties of poly(butyl methacrylate) nanocomposites

Suhailath

Ramesan

2018

Vinyl Additive Technology

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Nanocomposites based on neodymium-doped titanium dioxide (Nd-TiO 2 )/poly(n-butyl methacrylate) (PBMA) have been prepared by an in situ polymerization of butyl methacrylate monomer with varying concentrations of Nd-TiO 2 nanoparticles. The resulting nanocomposites have been analyzed by ultraviolet (UV)-Visible spectroscopy, Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscope (SEM), differential scanning calorimetry (DSC), thermogravimetric analysis, and impedance analyzer (TGA). The results of UV and FTIR spectroscopy have indicated the interaction of nanoparticles with the PBMA matrix. Spherically shaped nanoparticles with an average size of 10-25 nm have been revealed in the TEM and their homogeneous dispersion, and interaction of polymer matrix has been confirmed by SEM and XRD studies. The thermal stability and glass transition temperature of the composites were significantly enhanced by the addition of nanoparticles. The AC conductivity and dielectric properties of nanocomposites have been found to be higher than pure PBMA, and the maximum electrical properties have been observed for 7 wt% composite. The reinforcing nature of the nanoparticles in PBMA has been reflected in the improvement in tensile strength measurements. The result indicated that the tensile strength of nanocomposites have greatly enhanced by the addition of Nd-TiO 2 nanoparticles whereas the elongation at break decreases with the loading of nanofillers. To understand the mechanism of reinforcement, tensile strength values have been correlated with various theoretical modeling. The research has been found to be promising in the development of novel materials with enhanced tensile strength, dielectric constant, and thermal properties, which may find potential applications in energy storage and nanoelectronic devices. J. VINYL ADDIT. TECHNOL., 25:9-18, 2019.

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“…However, these bands were not present in un-aged as well as aged thin films. Three other bands detected at 2927 (PUA), 2904 (PA30) and 2903 cm -1 (PA180) can be ascribed to the C-H stretching and appeared in PPFCD films because of plasma polymerization process [52]. The absorption band appeared at 2190 cm -1 (PA30) may be owing to the C-H stretching vibration of the CH 3 group and is related to the aging of the PPFCD films [53].…”

Section: Structural Analysis Of Unaged and Aged Ppfcd Thin Filmsmentioning

confidence: 98%

Synthesis and aging effect of plasma-polymerized 2-furancarboxaldehyde amorphous thin films

Kabir

Nasrin

Hasan

et al. 2019

Materials Chemistry and Physics

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Monomer 2-Furancarboxaldehyde (FCD) deposited via glow discharge technique onto glass substrates to produce plasma synthesized 2-Furancarboxaldehyde (PPFCD) thin films with different thicknesses. The various characteristics, such as the structural, optical, morphological and elemental properties of unaged (as deposited) as well as aged PPFCD thin films were studied using Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), ultraviolet-visible (UV-Vis) absorption spectroscopy, environmental scanning electron microscopy (ESEM), and energy dispersive X-ray spectroscopic (EDAX) methods. The XRD studies indicated the existence of small crystallite domains or amorphous nature of the PPFCD films. The ESEM micrographs exhibited the uniform, pinhole, and fracture free surface of PPFCD films together with no queerish morphological variations due to the aging effect. On the contrary, the EDAX and FTIR spectroscopic studies illustrated some structural rearrangement owing to the aging of PPFCD thin films. The UV-Vis studies revealed that the direct and indirect optical band gaps (E db and E ib ), and steepness parameter (σ) of the aged PPFCD films were significantly reduced from 3.43 to 3.20 eV, 2.18 to 1.53 eV, and 0.0546 to 0.0524 respectively while the Urbach energy (E u ) value was slightly enhanced from 0.48 to 0.50 eV. This indicated that the aging has remarkable effects on the optical properties of the PPFCD films.

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Synthesis, characterisation and flame, thermal and electrical properties of poly (n-butyl methacrylate)/titanium dioxide nanocomposites

Cited by 37 publications

References 26 publications

Hybrid Nanorods Composed of Titanium, Silicon, and Organophosphorus as Additives for Flame-Retardant Polycarbonate

Hybrid Nanorods Composed of Titanium, Silicon, and Organophosphorus as Additives for Flame-Retardant Polycarbonate

Effect of neodymium‐doped titanium dioxide nanoparticles on the structural, mechanical, and electrical properties of poly(butyl methacrylate) nanocomposites

Synthesis and aging effect of plasma-polymerized 2-furancarboxaldehyde amorphous thin films

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